Product Description:

The EcoFlow River 3 EB300 is an official expansion battery designed to work seamlessly with the EcoFlow River 3, River 3 Max, and River 3 Max Plus. With an extra 286Wh of LiFePO4 capacity, you can double your runtime, extend your backup duration, and enjoy even more flexibility—whether at home or off the grid.

📦 What’s In The Box 

• 1 × EcoFlow River 3 EB300 Expansion Battery
• 1 × User Manual 

(Main River 3 unit sold separately)